Bug 2530477 (CVE-2026-87724) - CVE-2026-87724 Tor: Tor: Denial of Service via misinterpretation of congestion-control extension
Summary: CVE-2026-87724 Tor: Tor: Denial of Service via misinterpretation of congestio...
Keywords:
Status: NEW
Alias: CVE-2026-87724
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2530532 2530533
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-09 01:41 UTC by OSIDB Bzimport
Modified: 2026-09-09 07:04 UTC (History)
0 users

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Description OSIDB Bzimport 2026-09-09 01:41:22 UTC 
Tor before 0.4.9.12 interprets the CC_RESPONSE extension even when CC_REQUEST was not sent, which allows remote attackers to cause a denial of service (crash) because of corrupted congestion-control state. This is TROVE-2026-032.
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